The week of 7 July 2025 - 13 July 2025 had an average daily temperature of 26 °C (79 °F) and a minimum (nighttime) temperature of 14 °C (57 °F). These temperatures are slightly above the long-time average for Lille, being 24 °C (75 °F) for daily temperatures and 14 °C (57 °F) for night temperatures. Tuesday marked the hottest day of the week. In the beginning, Monday was coldest day of the week. The average temperatures observed during different times of day (based on local time) were as below: 7am 15 °C (59 °F), 10am 19 °C (66 °F), 1pm 24 °C (75 °F), 4pm 25 °C (77 °F), 7pm 24 °C (75 °F), 10pm 19 °C (66 °F).

The week had 6 days without rain and 1 day with light rain. Lille received 3 mm (0.12 in) of precipitation throughout the week, which is below its long-term average of 16 mm (0.63 in). The daytime hours (from dawn to dusk) had an average cloud coverage of 26 %. Meteorologically speaking, mist was observed.

Average speed of wind was 3.4 m/s. The air pressure varied between 1005 hpa and 1023 hpa. The air in Lille had an average humidity of 70 %.

During the daytime (from dawn to dusk), there were in average: 11 hours clear skies, 2 hours partially overcast skies and 4 hours overcast skies. Average time of sunrise was 05:46, average time of sunset was 21:58.

Weather overview

The city of Lille, situated in France, experiences a temperate climate where seasonal variations in weather conditions are noticeable. Daytime temperatures fluctuate significantly throughout the year, dipping to averages as low as 6 °C (44 °F) Celsius in the month of January, while peaking at around 24 °C (74 °F) Celsius in the heat of July. When the sun sets, the coldest nights occur in January with average minimums of 2 °C (35 °F) Celsius, whereas the warmest nights in July could see temperatures averaging at 14 °C (57 °F) Celsius. When it comes to precipitation, Lille is driest in July, experiencing just 10 days with rainfall, while the skies open up most frequently in November, bringing rain on an average of 14 days.

January weather

In Lille, the day and night temperatures reach their yearly minimum in January. Additionally, a decrement in rainfall starts with an average of 59 mm (2.32 in) observed. The wind can be brisk with speeds maxing out at 5, and humidity tends to peak at an impressive 88 % during this month.

February weather

February in Lille witnesses the commencement of an incremental rise in daytime temperatures, marked at 7 °C (45 °F). Rainfall continues to decline, amounting to 46 mm (1.82 in), and the days with rain start to decrease to 11 days. The progression of sunnier hours without clouds sets in.

March weather

Throughout March, there is an observable increase in daytime temperatures in Lille, reaching 11 °C (52 °F), while nighttime temperatures start to climb. Rainfall begins to increase as well, with an average of 55 mm (2.17 in). There is a rise in sun hours without clouds, now averaging 4 hours.

April weather

As April arrives, both day (14 °C (58 °F)) and night (6 °C (42 °F)) temperatures in Lille are on the upward trend. The number of days with rain starts to decline, averaging 11 days, and the month sees the least amount of rainfall. Humidity levels reach their yearly low at 77 %.

May weather

May in Lille is characterized by a continuous rise in day (18 °C (65 °F)) and night (9 °C (49 °F)) temperatures and a minor increase in rainfall. The growing anticipation for the tourist season is clear, with sun hours also rising to 6 hours.

June weather

June marks the continued ascension of temperatures, reaching an average daily high of 21 °C (70 °F) in Lille. The nights get warmer too, averaging 12 °C (53 °F). The impending tourist season is evident and the day length peaks at 16 hours. The number of sunny hours reaches a yearly maximum.

July weather

July brings the peak of summer with the highest day temperatures, averaging 24 °C (74 °F), and night temperatures also reaching their maximum. The potential for rain is at its lowest, indicated by an average of 10 days with rain. The wind speed also hits a yearly low, coming in at 3.

August weather

The tourist season is under way in Lille. While the length of the day starts to shorten, averaging 14 hours, it still provides ample daylight for sightseeing and activities.

September weather

In September, Lille experiences the commencement of cooler day temperatures, averaging 20 °C (68 °F), and nights begin to cool down with an average of 11 °C (53 °F). The sunlight hours start to diminish 5 hours with the tourist season still in full swing.

October weather

October sees further cooling with day temperatures averaging 16 °C (60 °F) in Lille, and nights become chillier at around 9 °C (47 °F). An uptick in rainy days to 12 days is noticed and the rainfall also increases this month. The availability of sunshine continues to decrease, now at 4 hours.

November weather

November's chilly air sees day temperatures descending to an average of 10 °C (50 °F) in Lille and night temperatures dropping to 5 °C (41 °F). The frequency of rainy days hits its peak, shown by 14 days, and the maximum rainfall is recorded this month. The dwindling sunny hours are evident, marking at 2 hours.

December weather

December in Lille is marked by a decline in day temperatures, now at 7 °C (44 °F), and colder nights, with an average of 2 °C (36 °F). The rainy days start to diminish. The shortest daylight hours of the year are observed, with a value of 1 hour, and the day length reaches its minimum in December.

What is the typical daytime temperature in Lille during January?

In January, Lille experiences average daytime temperatures of about 6 °C (44 °F).

Does the level of rainfall in Lille decrease in February?

Yes, February in Lille sees a reduction in rainfall, averaging around 46 mm (1.82 in) for the month.

Are the nights still cold in Lille during March?

Yes, nights in March are relatively chilly in Lille with temperatures averaging around 4 °C (39 °F).

How does the wind speed in Lille change during the month of April?

In April, the average wind speed in Lille slightly diminishes to around 4

How does the tourist season in Lille begin to unfold in May?

The tourist season in Lille starts to pick up in May as temperatures become warmer, with daily highs around 18 °C (65 °F).

What can tourists expect in terms of sea temperature in Lille during June?

Tourists can expect the sea temperature in Lille to be somewhat cool in June, averaging 15 °C (58 °F)

Is July the optimal time to visit Lille for those looking to avoid rain?

Yes, July offers the best chance to avoid rain, with as few as 10 days on average.

What weather can be anticipated during August in Lille?

August is likely to offer warm weather, with average day temperatures of 23 °C (74 °F), ideal for outdoor activities and exploring.

How do the conditions change for tourists visiting Lille in September?

Tourists in September will find conditions in Lille still pleasant but with a hint of autumn in the air, as daytime temperatures average 20 °C (68 °F)

With October's arrival, what kind of night weather can Lille's residents expect?

As October progresses, Lille's residents will experience cooler nights with temperatures around 9 °C (47 °F)

How does November's weather in Lille prepare residents for the approaching winter?

In November, Lille's weather shifts as temperatures drop and rain becomes more frequent, signaling the approach of winter.

What is a distinctive feature of December weather in Lille?

December in Lille is characterized by short daylight hours, averaging only about 1 hour.